Prevent clickjacking of superuser requests

Enable filterTouchesWhenObscured on the accept request button to prevent
possible clickjacking attacks. This is a measure used in many sensitive
dialogs (app installation, backup & VPN) in AOSP.

Change-Id: I33c18c449c909b97b29b981bffe7f3095adee506
Automatic translation import

Change-Id: Iaf971bba9546c9531685265a899bbff635e88d37
Automatic translation import

Change-Id: I78b6d486ab5203fabbb2f2b0763058c76b927d0f
Rename allow and deny strings.

Both are also present in the Settings app's resources, which we
integrate into.

Change-Id: Ib08e84995a946d3fdf22f1bb61871c4e1429538e
Superuser: Remove unused translations

Change-Id: Iecd28faacb070e753305bc52395586f429d58723
Merge branch 'cm-11.0' of github.com:CyanogenMod/Superuser into HEAD